/**
 * #      116
 * 名称   填充每个节点的下一个右侧节点指针
 * 链接   https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node
 * 题解   [806](https://leetcode-cn.com/problems/populating-next-right-pointers-in-each-node/solution)
 * 通过率 69.2%
 * 难道   中等
 */

